I'd say both, but with ts4 I'm definitely leaning more towards sandbox.
And that's because of how the game is programmed. I read in another thread, which I find a good description, that ts4 only comes in extremes. Particular in-game occurrences are either ridiculously frequent/intense or pretty much non-existent - there is no middle ground apparently.
And it is exactly that, that makes me wish for more options, toggles, sliders, etc. And while the past couple of years, we did get more of such tools than before, I wish the devs had realised that from the start.
